The Netherlands Institute of Ecology (NIOO-KNAW) focusses on basic and strategic research into individual organisms, populations, ecological communities and ecosystems. The NIOO-KNAW employs more than 250 people at three research centres and its headquarters. Research at the Centre for Estuarine and Marine Ecology (CEME) in Yerseke concentrates on ecosystems in brackish and salt water, while the Centre for Limnology (CL) in Nieuwersluis focuses on freshwater ecology. The Centre for Terrestrial Ecology (CTE) in Heteren emphasises land-based ecology. Originally, the three centres were founded in the fifties as independent institutes, but since 1992 they have joined forces to form the NIOO-KNAW.

Heip, C.H.R.; Hummel, H. (Ed.) (2003). BIOMARE-Implementation and networking of large-scale long-term MARine BIOdiversity research in Europe: a concerted action to establish the infrastructure and conditions required for marine biodiversity research at a European scale. CEME/NIOO: Yerseke. 1 cd-rom pp., more